REFERENCES
- Gorenstein , D. ( 1986 ). Finite Groups . New York : Harper and Row .
- Kurzweil , H. , Stellmacher , B. ( 2004 ). The Theory of Finite Groups . New York : Springer .
- Li , S. ( 2001 ). The structure of NC-groups . J. Algebra 241 : 611 – 619 .
- Miyamoto , M. ( 1982 ). Solvability of some groups . Hokkaido Math. J. 11 : 106 – 110 .
- Rédei , L. ( 1947 ). Das schiefe product in der Gruppentheorie . Comment. Math. Helvet. 20 : 225 – 267 .
- Zassenhaus , H. A. ( 1952 ). A group-theoretic proof of a theorem of Maclagan–Wedderburn . Proc. Glasgow Math. Assoc. 1 : 53 – 63 .
- Communicated by A. Turull.